DE104TS
DURAVER-E-Cu quality 104 TS
Specification Sheet #: IPC-4101C /21
Reinforcement: Woven E-glass
Resin System: primary: difunctional Epoxy, secondary: multifunctional Epoxy
Flame Retardant Mechanism: bromine epoxy resin (Minimum UL 94 Requirement: V-1)
Fillers: N/A
ID Reference: UL/ANSI: FR-4, ANSI: FR-4/21
Glass Transition (Tg): 110 C - 150 C
The requirements imposed with regard to the heat resistance of base materials are rising constantly. The reasons are due not only to the manufacture of subassemblies, but also to the final use for which the circuit board is required. Soldering processes in particular must be considered critical in the manufacture of subassemblies.
New, leadfree solders with higher melting points will be used in future, with the result that the base material must consequently display greater heat resistance. In automotive electronic systems, circuit boards are increasingly being positioned in the engine compartment. The intense heat radiated in this area imposes high thermal stresses on the base material. The material is additionally subjected to thermal shocks here and conventional FR-4 qualities frequently come up against their load limits in such situations.
With the quality 104 TS, Isola has been able to develop a resin formulation with significantly improved thermal stability. In the so-called 'T260 Test', the time required for delamination at 260 C is in excess of 60 minutes. A standard FR-4 material is delaminated after only 15 minutes at this temperature.
In all other respects, quality 104 TS displays the same favourable properties as a standard FR-4 quality.
| Supply Forms |
DURAVER-E-Cu quality 104 TS
Standard sheet sizes
1165 mm x 1070 mm
1225 mm x 925 mm
1225 mm x 1070 mm
1285 mm x 1070 mm
Tolerance: + 3 mm / - 0 mm
Other sizes on request.
Standard copper cladding
18 microns, 35 microns and 70 microns, one-sided or two-sided.
Other thicknesses on request.
Copper foils
Electrodeposited copper foils of maximum purity (at least 98.8%) are used exclusively. These foils are treated on the side in contact with the base material in order to guarantee optimum adhesion.
Panels
Panels are supplied cut to specifications, on request also with mechanically profiled edges and rounded corners.
Tolerances:
Up to 300 mm 0.5 mm
Over 300 mm 0.8 mm
Angular deviation:
0.40 mm/100 mm edge length
0.15 mm/100 mm edge length
(for ground edges)
Various forms of identification are also available, such as laser marking, embossing or ink-jet printing (also as barcode). Pre-cut panels greatly improve the logistics and also reduce the risk of damage to the surface.
